diff options
| -rwxr-xr-x | bin/stream | 23 |
1 files changed, 20 insertions, 3 deletions
@@ -132,10 +132,27 @@ BITS=$(videosize "$HEIGHT" "$RATIO") # * bitrates and bits in parens based on https://developer.apple.com/library/content/documentation/General/Reference/HLSAuthoringSpec/Requirements.html # + bits rounded up to include nearby modulo 16 formats -# + best (i.e. high-modulo) 16:9 heights: 216 288 360 432 576 720 -# + best (i.e. high-modulo) 4:3 heights: 288 312 384 480 624 816 +# + best (i.e. high-modulo) 16:9 heights: (72 180) 216 288 360 432 576 720 +# + best (i.e. high-modulo) 4:3 heights: (105 210) 288 312 384 480 624 816 # * speeds tuned to just below 100% cpu usage for each combination on a multi-core computer # TODO: Externalize speeds to site-specific configfile +if [ $BITS -le 15360 ]; then # 192x80 → 15360 + AFRAMERATE_AAC=22050 + ABITRATE_OPUS=16000 + ABITRATE_AAC=32000 + VFRAMERATE=10 + VBITRATE=32000 + SPEED_X264=fast; SPEED_X264_ALONE=fast + SPEED_VP8=3; SPEED_VP8_ALONE=2 +elif [ $BITS -le 61440 ]; then # 384x160 → 61440 + AFRAMERATE_AAC=22050 + ABITRATE_OPUS=16000 + ABITRATE_AAC=32000 + VFRAMERATE=10 + VBITRATE=64000 + VBITRATE=145000 + SPEED_X264=fast; SPEED_X264_ALONE=fast + SPEED_VP8=3; SPEED_VP8_ALONE=2 if [ $BITS -le 110592 ]; then # 234p → 97344 VBITRATE=145000 SPEED_X264=fast; SPEED_X264_ALONE=fast @@ -172,7 +189,7 @@ HEIGHTS=$(uniqwords "$HEIGHTS_WEBM $HEIGHTS_MPEG") filter_split_height() { heightcount=$(echo "$HEIGHTS" | wc --words) - echo_n "[$VSTREAMINDEX:v]${DEINT:+$DEINT,}format=pix_fmts=yuv420p,split=$heightcount" + echo_n "[$VSTREAMINDEX:v]${DEINT:+$DEINT,}${VFRAMERATE:+framerate=$VFRAMERATE,}format=pix_fmts=yuv420p,split=$heightcount" printf_each '[s%s]' "$HEIGHTS" } filter_scale() { outstem=${1:-v}; |